The Battle of Anchorage (also known as the Anchorage Campaign and the Anchorage Reclamation) was fought between the United States and the People's Republic of China, started by the Chinese invasion of Alaska in the year 2066.

With conditions deteriorating between the U.S. and China, a military presence in Alaska was established to prevent a possible invasion across the Bering Strait. With increasingly scarce oil reserves, a last deep-sea deposit below the Pacific Ocean was claimed by China before allegedly being sabotaged by American special operatives. Strained relationships spiraled downward into conflict as Chinese forces marched into Alaska, officially starting the Sino-American War. Under the command of General Jingwei, the Chinese Army usurped control of Alaska's oil pipelines and reserves.

Under the leadership of General Constantine Chase, the U.S. Army battled fiercely at the front lines of the conflict before Chase began deploying specialized power armor units that began pushing the Chinese back. Future power armor suits were further refined as the conflict dragged on, and the Trans-Alaska Pipeline was reclaimed. With American resources flowing through Canada, strained diplomatic relations between the two countries became problematic. Canada was militarily annexed with the near sabotage of the Alaskan pipeline.

With a combination of inclement weather, constant American bombardment, trench warfare and U.S. power armor units attacking mainland China, the Chinese supply lines were severely weakened. By January 2077, the city of Anchorage was finally liberated and the Chinese presence was removed. A commemorative memorial was erected in Washington, D.C., in honor of the soldiers who fought and perished for the United States. Violence between America and pockets of Canadian freedom fighters continued throughout 2077, up until the Great War.
According to Defense Intelligence Agency the full clean up of remnant Chinese force was achieved on January 28, 16:32PM, and USA raised the DEFCON status to DEFCON 3.